Traveling block



NOV 5, 1929. c PlPPEN ET AL 1,734,047

TRAVELING BLOCK Filed May 19, 1928 rfivmrons. C/l/IRLES E P/PPM.

Hm/var B. Onmszsy. BX

Arron/var Patented Nov. 5, 1929 UNETED STATES PATENT orrics CHARLES F. PIPPEN AND EARNEST B. ORIVISBY, OF LONG- BEAC'H, CALIFORNIA TRAVELING BLOCK Application filed May 19,

In the drilling of deep wells or in the lifting of any heavy machinery, or the like, it is frequently desirable to change the number of lines running to a traveling block so that a greater mechanical advantage can be obtained and a greater load lifted with the same power. Particularly in the drilling of wells it is frequently desirable to obtain a greater mechan ical advantage in the traveling block in order that casing, tubing, or the like, can be more effectively lifted or lowered.

An object of our invention is to provide a traveling block with a removable sheave section which can be quickly and easily inserted or removed in the traveling block.

Another object is to provide a traveling block, the removable section of which always has the cable threaded thereover so that it can be brought into use in a minimum length of v 23 time and with very little labor.

Other objects, advantages, and features of invention may appear from the accompanying drawing, the subjoined detailed description, and the appended claims.

In the drawing:

Fig. 1 is a fragmentary view of a derrick including the crown block and showing our traveling block in connection therewith.

Fig. 2 is a side view of our block with the removable section immediately above it.

Fig. 3 is an end view of our block.

Fig. 1 is a fragmentary side view of one of the pins.

Fig. 5 is an end view of the same.

Referring more particularly to the drawing, the numeral 1 indicates an oil well derrick of usual and well-known construction on the top of which any well-known type of crown block 2 is mounted. The crown block 9 is supported on suitable structural members 3, the details of which need not be described. Our traveling block 4 comprises a plurality of fixed sheaves 5 which are mounted on a heavy pin 6, which pin is secured in the side $5 plates 7, 8. The cable from the source of power (not shown) extends over the crown block 2 and thence around each of the various sheaves 5. As shown in the drawing, there would be three lines running from the sheaves 5 over three pulleys of the crown block.

1928. Serial No. 278,951.

A pin 9 extends between the side plates 7, 8 adjacent the bottom thereof, and a link -10 is secured thereto so that a hook, orthe like, can be secured to the traveling block. Spacing plates 11, 11 extend'betweenthe sheaves 5 to space the same. A removable section 12is provided which can either be secured to the side plates 7, 8 so that it moves with the rest of the traveling block, or it can be raised to the crown block and secured adjacent the same at which time the remainder of the traveling block is released and a greater speed is obtained in the block although it will have less lifting capacity.

The removable section 12 comprises a pin 13 upon which a plurality ofsheaves 14 are journaled. Spacing plates 15 are positioned on' the outside of the sheaves 1 1 and between the same, thus providing a frame and also a spacing arrangement for the sheaves. An upper guide pin 16 extends through the plates 15 the object of which will be further described. A pair of slots-'17, 17 are cut in the side plates 7, 8 and holes 18, 19 are drilled through the side plates and communicate with the slot 17 to expose the ends of the pins 18, 16 when the section 12 is in position in the block.

The removable section 12 is secured in place in the following manner: The pins 13, 16 are rotatable in the section and the endsthereof are flattened on both sides, as at 20, so that the pins will just pass into the slot 17. l The holes 18, 19 previously described, are of the exact larger diameter of the pins so that when they are turned at right angles from the inserting position, the rounded sides of the pins will be at right angles to the slot, and thus the re- I movable section will be securely held. Set screws 21, 22 extend through the side plates against or into the pins to hold them against rotation.

l/Vhen the removable section 12 is not in use, that is, when it is not secured to the traveling block, it is pressed tightly against the structural support 3 and is held in that position by suitable means. The cable, of course, still passes over the sheaves 1 1 and over the corresponding pulleys in the crown block so. th:.t when it is desired to use this section it is only necessary to lower it into the slots 17 then turn the pins 13, 16 so that they are locked in position, after which the traveling block is ready for use.

The pins 13, 16 can be readily rotated by a wrench which extends into a slot cut in the end of each pin; the wrenchbeing extended through the holes 18, 19.

Having described our invention, we claim:

1; A traveling block comprising side plates, a plurality 'o'ffix ed sheaves ournaled between the side plates, a removable section including a plurality of sheaves journaled therein, and means to relnovably secure sai'd' removable section to the side plates.

A traveling bloc'lfcomprisi rig side plates,

' a plurality of fixed sheavesj ournfale'dhetwe en s'a'id' sideplatea saidside plates 'havingslots therein adjacent theftop' the'reof, aremovable sheavefsection including a pin, sheaves mounted on the pin,':said pin being adapted to extend into-said slotgand m'eans' to secure pins bot-h ofsaid' pins 1 being adapted to exsaid pin in'theslOtS.

3. Atra'veling-block comprising side plates,

. a plurality of fixedsheaves journaled between said'side I plates, said "side plates having slots therein adjacent the top thereof, "a removable sheave section includingfa pin, sheaves mounted on the pin, a second pin, frame'pl'ates extending'between said first and last/named tend into said s'lotsa'nd means to secure'said :pins in the'slots.

4} A traveling blockcomprising side "plates,

aplu'rality offixed sheaves journaled between said side 'late's, said sidefplates having slotstherin ad ia'cent the topthe'r'eof,a removable sheave sec'tion' including a pin, sheaves mo'unted 'o'n'the pin, a secondpin, 'frain'eplates 1 extending between said first and last nani'edpingboth o'f sai d: pins being adaptedko 'extend into saidslots, and means to secure said pins in the slots, said means comprising flattened faces on said pins Whereby thepins 'arema deto fit the slots in the side plates, said side plateshaving holesdrille'd therein through the slots toaocom'mcidate-the greater'diameter ofthe pinsfand said pins being adapted to rotate in the ho'les to hold the same against movement in-the slots;

5. At-raveling block comprising side plates,

a pluralitybf "fixed sheaves ournaled between'said si'deiplates,said si e'plates having slots formed'therein adjacent the top thereof, aremova b'le sheave section including a pm, sheaves mounted on the pin, a" second 7 pin, frame plates extending between said first and last name'd ipins, both of said pins being adapted'fto extend into said slots, and means to'secure saidpins in'the slots, said means tures.

CHARLES F. PIPPEN. EARNEST B. ORMSBY.

'comprisingilattened 'faces on said-pins where'- by the-pins are made tolitthe slots in the side plates, said side plates having holes drilled therein throughtheslots to accommodate thelgreater diameter of the pins, and said 

